BrandNewIggi We are all unique, and our circumstances vary, so MKs list is based on what she considers the easiest to the most difficult categories.
To successfully complete the project we have to re-order sometimes, add in new categories or sub-categories, so that we tackle our clutter from oureasiest to hardest.
This way we build up our own intolerance to clutter and excess, which should firmly stick with us, when the project is completed.
I have several 'junk' drawers, dishes or pots throughout the house and I can't imagine going round the house collecting drawing pins, screws, foreign coins, etc etc!
When I come across these clutter containers, as I am working on a category (or cleaning afterwards!) I am just tipping them into a clutter-box and will sit and sort them later, taking each group of things to their homes and chucking the crap things that I can no longer identify or don't need.
I am about to fold my carrier bags! Aaaaaagh! A HUGE bage of flimsy carriers, a HUGE quantity of posh designer carriers (from my daughter!) and how did I get a HUGE quantity of BFL and Iceland thermo bags?
All the bags I use for shopping are already in my nice V&A shopping bag or 2 of the press-stud ones, in my handbag. I guess most of the folded ones will end up at the CS or in the clothes bank! 
One of the posh designer ones may be useful for baking trays - they are all strong enough! Yay. (Thanks Harrods, Karen Millen, Viyella, et al!)